In November 2007 Stangnes was announced as the new coach of fourth-tier club Hammerfest FK.[1] He left in March 2009.[2] He took over Bossekop UL in 2012 and secured promotion from the 2012 3. Divisjon. He resigned in the summer of 2013.[3] Ahead of the 2014 season he was hired as head coach of IF Fløya's women's team, but he was fired in early April.[4]